Parameters of the midlatitude positive bays (MPB) Calculated at Space Research and Technology Institute, Sofia, Bulgaria Station: PAG Date of observation: 03.08.2010 beginning time = 1250 min.(UT), 20:50 UT Xbegin = -24.298 nT time of max = 1321 min.(UT), 22: 1 UT Xmax = 17.026 nT Y at Xmax = 2.758 nT endtime = 1357 min.(UT), 22:37 UT Xend = -11.896 nT amplitude = 41.324 nT base duration time =107 min. 2sigma = 10.846 nT duration at 2sigma = 14 min. flagbegin = 0 flagend = 0 flagxcheck = 0